ENGINE PROBLEMS........

[thegibo]

Hello to all, new member here with a very very annoying engine problem.
Engine started playing up about 2 weeks after having a service, juddering, revs dropping and wanting to cut out, eventually it did cut out, started again after 10 mins or so but then cuts out again.
Fault code reader came back with codes P0201 P0202 P0203 and P0204 (injector circuit fault to cylinder 1 2 3 and 4).
Got advised to change the plugs and maybe the coil pack, i changed both but still the same.
Leaving work the other day and it wouldnt even start, was turning over but wouldnt start, called the rac out and he said its the crank sensor, got a new 1 and put it on, still the same, wont start.
Ran another code check and still has the same codes as before.
I've read loads of peoples thoughts and possibles on the web but it really is just guess work and i've already spent £230 without any results.
Does anybody have any thoughts/ideas on this at all, anything would much appreciated.
2003 (03 plate) Vauxhall Zafira GSi (2.0 turbo - Z20LET)

Edited by thegibo on Sunday 16th January 10:15

[thegibo]

I would quite happily do that if it would drive, the car is stuck about 100 yards from my house and wont start, its turning over but wont start.

[thegibo]

Do you know what, i never thought of any of them, mmmmmmm.
Put the post on in the hope that someone might have an idea.

[thegibo]

Stevie, I dont expect you to be mind readers, you say vague information...! Basically i've outlined everything that has happened and put down all the fault codes i'm getting back so what more can i put...?

Martin, thank you very much for your input, what you say does make sense so thats what i'm going to look into next, thanks again.

[thegibo]

The only thing thats holding me back with that is that i've read far too many posts about people putting there car into a Vauxhall dealers with what sounds like similar faults, only to be told the wrong diagnosis and still getting charged for the pleasure of it, looks like i might just have to bite the bullet and go with it though (with everything crossed).
Thanks for all your replies people, much appreciated.

Edited by thegibo on Sunday 16th January 21:38

[thegibo]

Ok Stevie thanks, you certainly do seem to know your stuff.
Thanks again.

[thegibo]

Ok then, finally got put in touch with a auto elec/mechanic yesterday, got the car towed to his place of work (1 mile away), 3 hours later its sorted, turned out to be a dodgy fuel pump/injector relay which had finally packed in, as to whether this had anything to do with the original juddering/cutting out problem i dont know because when i cleaned the breather pipes and put new vauxhall spark plugs in it was running fine, anyway it appears to be running ok now.
Big thanks to everyones replies, an expensive lesson learned i think.
Thanks.

[thegibo]

Can relays play up like that though, work 1 minute and not the next, i'd have thought that when they are ready to go then thats it, end of, never mind, problem solved.
Thanks again Stevie and Martin for your replies.

[thegibo]

Well everything i done was on the advice of a mechanic (over the phone).
I'll be honest with you, i'm really not the best with under the bonnet stuff, never really showed any interest as a boy and when i started driving it was a case of if it starts then fine, its only in the last couple of years that i'm starting to take an interest into the mechanical side of things, silly me really and as i said earlier, an expensive lesson learnt.
Thanks.

Edited by thegibo on Thursday 20th January 18:18

[thegibo]

But it doesnt end there, took the car for a wash today then onto McDonalds, got back into the car and it wouldnt start, checked that the relays were in ok and it started but with the engine light on, gets home and let it idle for a bit and every so often the revs drop a little bit, plugged in my fault code checker and got the same codes as before, P0201 P0203 P0204 and P0202 in that order, back to the mechanic/auto elec again for further investigation, was running fine all week too, mmmmmm.